All categories

3 years ago

Please help me with this as soon as possible!!

Mathematics

2 answers:

bearhunter [10]3 years ago

5 0

The answer is D, but since the other person answered first please give them brainliest, their description was perfect.
I hope you find good answers on further questions!

Pie3 years ago

3 0

Answer:

D. 48

Step-by-step explanation:

Let's first find the probability that in the first 40 trials, exactly two of the coins are heads.

We know that there were 16 such outcomes of 2 heads and 1 tail, and there was a total of 40 possible outcomes. So our probability is:

16 / 40 = 4 / 10 = 2/5

We can assume that the probability that in the next 120 trials, about 2/5 of the outcomes will also be 2 heads and 1 tail. So, we multiply 2/5 by 120 to figure out that exact number:

(2/5) * 120 = 240/5 = 48

The answer is thus D.

You might be interested in

Mrs. Williams needed to make 4 1/2 of fruit salad for a class party.

ziro4ka [17]

Answer:

strawberry=7/8

Step-by-step explanation:

treat strawberry as x

add on proportions

1 1/8+ 3/4+ 1 3/4 + x = 4 1/2

(9+6+14)/8 + x = 9/2

29/8 +x = 9/2

x= 9/2 - 29/8

x= (36-29)/8

x=7/8

3 0

3 years ago

Pls help the question below

notka56 [123]

Answer:

third option the line is going away from 4 cause x is lesser and the circle isnt closesd cause x doesnt = 4

Step-by-step explanation:

5 0

3 years ago

A demand loan for $8,944.61 with interest at 7.8% compounded semi-annually is repaid after two years, seven months. What is the

disa [49]

Answer:

the correct answer is option D which is $1,954.94

Step-by-step explanation:

loan amount = $8,944.61

interest = 7.8% = 7.8 %/2 = 3.9 %

compounded semi annually = 2 × 12 + 7 = 31 months

time = 31/6 months

$I =P(1+\dfrac{r}{100})^{\frac{31}{6}}-P\\ \\I = 8994.61(1+\dfrac{3.9}{100})^{\frac{31}{6}}-8994.61 \\I =1954.94$

hence, the correct answer is option D which is $1,954.94

7 0

4 years ago

Least to greatest<br> .<br> .<br> .<br> Please and thank you <3

gizmo_the_mogwai [7]

2.2, 5/2, square root of 10, 7/2, -4.8

5 0

2 years ago

NEED HELPPP ASAPPP !!

Dimas [21]

I think the answer is 12

6 0

3 years ago